CVE-2012-4456

The (1) OS-KSADM/services and (2) tenant APIs in OpenStack Keystone Essex before 2012.1.2 and Folsom before folsom-2 do not properly validate X-Auth-Token, which allow remote attackers to read the roles for an arbitrary user or get, create, or delete arbitrary services.

Published: 2012-10-09 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-4456 is rated Moderate Risk (58/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.95%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-4456

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 6.51% 3.95% -2.56%
2 2025-03-29 3.95% 6.51% +2.56%
3 2025-03-17 — 3.95% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-4456

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2012-4456

GitHub Security Advisory for CVE-2012-4456

GHSA-mf98-r2gf-2x3w · Severity: high · Ecosystem: pip — OpenStack Keystone Improper Authentication vulnerability

OS Trackers for CVE-2012-4456

vendor priority summary link
debian not yet assigned CVE-2012-4456 not yet assigned priority: Debian including 1 source packages (keystone), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2012-4456
redhat medium — https://access.redhat.com/security/cve/CVE-2012-4456
ubuntu medium CVE-2012-4456 medium priority: Ubuntu including 1 source packages (keystone), 7 status rows across 7 suites (hardy, lucid, natty, oneiric, precise, quantal, upstream): DNE 3, released 2, ignored 1, not-affected 1. https://ubuntu.com/security/CVE-2012-4456

Affected software / configurations for CVE-2012-4456

Vendor Product Version Raw CPE
openstack keystone >= 2012.1, < 2012.1.2 cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*
openstack keystone 2012.2 cpe:2.3:a:openstack:keystone:2012.2:milestone1:*:*:*:*:*:*

References for CVE-2012-4456

URL Tags
http://secunia.com/advisories/50665 Third Party Advisory Vendor Advisory
http://www.openwall.com/lists/oss-security/2012/09/28/5 Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/55716 Third Party Advisory VDB Entry
https://bugs.launchpad.net/keystone/+bug/1006815 Third Party Advisory
https://bugs.launchpad.net/keystone/+bug/1006822 Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=861179 Issue Tracking Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/78944 Third Party Advisory VDB Entry
https://github.com/openstack/keystone/commit/14b136aed9d988f5a8f3e699bd4577c9b874d6c1 Third Party Advisory
https://github.com/openstack/keystone/commit/1d146f5c32e58a73a677d308370f147a3271c2cb Third Party Advisory
https://github.com/openstack/keystone/commit/24df3adb3f50cbb5ada411bc67aba8a781e6a431 Third Party Advisory
https://github.com/openstack/keystone/commit/868054992faa45d6f42d822bf1588cb88d7c9ccb Third Party Advisory
https://lists.launchpad.net/openstack/msg17034.html Patch Third Party Advisory
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